Flowpex pipe is a multi layered pipe of five layers. It consists of a layer of food grade cross-linked polyethylene, a layer of longitudinally laser-welded aluminum and an outer layer of UV stabilised HDPE.
Between these layers are adhesive and bonding layers. Our system is tested in accordance with AS4176 and AS4020 and as such is fully approved for use in gas, LPG, hot – cold water installations and hydronic heating. The system is exactly the same for gas as it is for water, except installers must ensure they use appropriately marked pipes, depending on the installation. For water and hydronic heating a black UV stabilised pipe with blue markings is used displaying the Watermark logo.
For gas instillations a black UV stabilised pipe with yellow markings displaying the Standards mark logo should be used.